When using a directional antenna, how might your station be able to communicate with a distant repeater if buildings or obstructions are blocking the direct line of sight path?

VHF and UHF signals generally travel in a straight, line-of-sight path. However, these radio waves can easily bounce off hard, dense surfaces such as buildings, water towers, or mountains. If a direct path to a repeater is blocked by an obstruction, you can often point a directional antenna at a nearby reflective surface to bounce your signal around the obstacle. The other options are incorrect for this scenario. Changing polarization will likely result in cross-polarization loss because repeaters typically use vertical antennas. 'Long path' refers to bouncing high-frequency (HF) skywave signals around the globe, not local VHF/UHF communications. Finally, increasing SWR (Standing Wave Ratio) means less of your power is actually radiating from the antenna, which would only weaken your signal further.